Rds8 xx, Exp(-t – C&H Technology RDS8__80XX User Manual
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RDS8__80XX
GENERAL PURPOSE RECTIFIER DIODE
Powerex, Inc., 200 Hillis Street, Youngwood, Pennsylvania 15697-1800 (724)925-7272
8000 Amperes 2500 Volts
Electrical Characteristics,
Tj=25°C unless otherwise specified
Rating
Characteristic
Symbol
Test Conditions
min
typ
max
Units
Repetitive Peak Reverse
Leakage Current
I
RRM
Tj=175°C, V
RRM
=Rated
150
300
ma
Peak On-State Voltage
V
FM
Tj=175°C, I
FM
=4000A
0.82
V
V
FM
Model, Low Level
V
0
Tj=175°C
0.654
V
VFM = V
O
+
r•
I
FM
r
15%
I
FM
- π•I
FM
3.82E-05
Ω
V
FM
Model, High Level
V
0
Tj=175°C
0.786
V
VFM = V
O
+
r•
I
FM
r
π•I
FM
- I
FSM
3.27E-05
Ω
V
FM
Model, 4-Term
A
Tj=175°C
0.218
V
FM
= A + B•Ln(I
FM
) +
B
15%I
FM
- I
FSM
5.70E-02
C•(I
FM
) + D•(I
FM
)
½
C
3.14E-05
D
8.51E-05
Reverse Recovery Time
t
RR
Tj=25°C, I
FM
=400A
25
µs
di
R
/dt = 25 A/µs
Thermal Characteristics
Rating
Characteristic
Symbol
Test Conditions
min
typ
max
Units
Thermal Resistance
Junction to Case
RΘ
jc
Double side cooled
0.007
0.0075
°C/Watt
Case to Sink
RΘ
cs
Double side cooled
0.001
0.0015
°C/Watt
Thermal Impedance Model
ZΘ
jc
Double side cooled
ZΘ
jc
(t) =
Σ(A(
N
)•(1-exp(-t/
Tau
(
N
))))
where:
N =
1
2
3
4
A(N
) =
1.426E-04
9.077E-04
2.373E-03
4.080E-03
T
au(N) =
2.622E-03
2.313E-02
3.049E-01
3.600E+00
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